9mm Optical tube with mount

thingiverse

NEW UPDATED 9MM DESIGN NOW UP! 1k rounds with no issues so far ALSO, 45 and .223 DESIGNS WILL BE UPLOADED AFTER X-MAS OF 2022. New tube completely redesigned and includes the Hornady adapter in the design and a redesigned sensor mount. Optical mountin holes ahs one smaller hole for LED light and large hole for sensor. Opening moved to ensure it is blocked by bullet. If you are frustrated with the mechanical switch for the open bulletfeeder and wanted to try optical, here is a combo of two designs I found. I have used the mechanical switch for a couple years, but it is finicky. I took the original optical sensor tube from AmmoMike and combined it with the mounting bracket from DPGunworks. So you can mount the sensor control board right on the tube. The added weight also helps the BF die return properly to drop only one bullet. I included the associated files for the sensor retaining knobs, you will need to print two if you want. Hot glue also works. I also use the Hornandy adapter with the stock Mr. BF drop spring to mount to the top of the tube. You may have to scuff up the top with sandpaper or glue a small piece of sandpaper onto the top of the tube to get a snug fir with the adapter, depending on your printer. These things always take a little effort to get them to work properly. Hopefully this design helps. I included a wiring diagram I made as well. This is my first upload, so feel free to modify or improve. Would be nice to have enclosure over the sensor board, but my Fusion 3D skills aren't there yet. Thanks to AmmoMike and DPGunworks